package nettyTest.netty3Test;

import io.netty.bootstrap.Bootstrap;
import io.netty.channel.ChannelFuture;
import io.netty.channel.ChannelInitializer;
import io.netty.channel.ChannelOption;
import io.netty.channel.ChannelPipeline;
import io.netty.channel.EventLoopGroup;
import io.netty.channel.nio.NioEventLoopGroup;
import io.netty.channel.socket.SocketChannel;
import io.netty.channel.socket.nio.NioSocketChannel;
import io.netty.handler.ssl.SslContext;
import io.netty.handler.ssl.SslContextBuilder;
import io.netty.handler.ssl.util.InsecureTrustManagerFactory;

public class EchoClient {

	static final boolean SSL = System.getProperty("ssl") != null;
	static final String HOST = System.getProperty("host", "127.0.0.1");
	static final int PORT = Integer.parseInt(System.getProperty("port", "8007"));
	static final int SIZE = Integer.parseInt(System.getProperty("size", "256"));

	public static void main(String[] args) throws Exception {
		final SslContext sslCtx;
		if (SSL) {
			sslCtx = SslContextBuilder.forClient().trustManager(InsecureTrustManagerFactory.INSTANCE).build();
		} else {
			sslCtx = null;
		}

		EventLoopGroup group = new NioEventLoopGroup();
		try {
			Bootstrap b = new Bootstrap();
			b.group(group).channel(NioSocketChannel.class).option(ChannelOption.TCP_NODELAY, true).handler(new ChannelInitializer<SocketChannel>() {

				@Override
				protected void initChannel(SocketChannel ch) throws Exception {
					ChannelPipeline p = ch.pipeline();
					if (sslCtx != null) {
						p.addLast(sslCtx.newHandler(ch.alloc(), HOST, PORT));
					}
					p.addLast(new EchoClientHandler());
				}
			});

			ChannelFuture f = b.connect(HOST, PORT).sync();
			f.channel().close().sync();
		} finally {
			group.shutdownGracefully();
		}
	}
}
